KR20230094684A - Stern structure of cargo carrier with ice breaking function - Google Patents

Abstract

The present invention relates to a stern structure of a cargo carrier for polar regions that has an icebreaking function and operates in polar waters, comprising: an engine unit equipped with an engine; A space portion formed between the engine portion and the outer plate of the hull; a propulsion unit provided at the stern side of the engine unit and having one or more propellers installed thereon; and a first bulkhead section separating the engine section from the space section and the thruster section.
The engine part is partitioned from the space part and the propeller part by the first partition wall part to form a watertight space.

Description

Stern structure of cargo carrier for polar regions having ice breaking function {STERN STRUCTURE OF CARGO CARRIER WITH ICE BREAKING FUNCTION}

The present invention relates to a cargo carrier for polar regions that transports cargo in polar waters, and more particularly, to prevent freezing or damage of machinery and equipment in the stern part during icebreaking or operation of a cargo carrier for polar regions having an icebreaking function The present invention relates to a stern structure of a cargo carrier for polar regions having an icebreaking function capable of protecting crew members in a low-temperature environment in polar waters.

As sea ice in the Arctic Ocean is lost due to global warming, interest in polar navigation is increasing, such as the Northeast Passage near Russia and the Northwest Passage near Canada.

The Arctic Ocean region has many resources and is known as a newly emerging tourist destination, so research on the development of polar routes for the purpose of transportation, supply and tourism according to the development of polar oil fields is becoming active.

About 25% of the world's underground resources are buried, and to develop the Arctic Sea Route, which reduces time and distance by more than 30% compared to existing routes, the countries adjacent to the Arctic Ocean, such as the United States, Canada, Russia, Denmark, and Norway, are leading related research. are performing

According to data released by researchers in the US and Canada, the current traffic volume of the Arctic Sea Route reaches 2% of the world's ship traffic by 2030 and is expected to reach 5% by 2050. It is very likely that the opening time will gradually come forward.

On the other hand, the environmental conditions of the polar waters are that the air temperature reaches about -52℃ and icebergs or pack ice exist in some sections during operation. Unlike ships, special designs are required considering harsh environments.

Polar ships prevent structures exposed to low-temperature outside air from freezing when operating in polar waters, and when supplying fresh air from the outside to the engine room, etc., intake air is used to prevent damage to the engine. It must be heated to an appropriate temperature and circulated.

Air used in an air conditioning system of a general polar vessel is heated to a temperature suitable for a demand place by an electric heater or a thermal oil system.

In this way, by appropriately heating the temperature of the air to be used in the polar vessel, it is possible to smoothly operate the generator, etc. even in the cryogenic environment of the polar sea area, and to prevent freezing or damage of various equipment and devices due to cryogenic temperatures. It can be prevented.

The foregoing technical configuration is a background technology for helping understanding of the present invention, and does not mean the prior art widely known in the technical field to which the present invention belongs.

Republic of Korea Registered Utility Model Publication No. 20-0406760 “Device for protecting hull from drift ice”

As described above, since icebergs or drift ice exist in polar waters, ships operating in polar waters may have an icebreaking function to pass through such frozen sections.

Specifically, when a ship operating in polar waters passes through a freezing section in which icebergs or drift ice exists, the end of the bow side around the waterline is inclined so that the ice can be broken by vertical shear force to move through the iceberg.

Ice goes down along the hull toward the lower part of the bow due to the inclined bow end, and as a result, the load of the ship is transmitted to the ice and the ice that does not overcome the load is broken, and the broken ice pieces flow into the ship bottom or side of the ship. icebreaking is completed.

Ships for polar regions having such an icebreaking function can operate by breaking single or perennial ice of 0.7m or more in the freezing section.

Such a ship for polar regions may have a propulsion device rotated 360 degrees so as to be able to operate in the stern direction (Astern direction), and even when moving backward in the stern direction (Astern direction), it will be configured to enable icebreaking to break thick ice. can

Propulsion devices applied to ships for polar regions include azimuth thrusters or pod-type propellers, and these thrusters can rotate 360 degrees in all directions so that ships for polar regions can move backward or turn freely. It could be possible.

On the other hand, during icebreaking operation in an ice section where icebergs or drift ice exist, impact or load (iceberg load) may be applied to the outer plate of the hull, such as colliding with ice chunks or getting ice fragments stuck, and compared to ships operating in general sea areas, The possibility of damage to the outer plate is relatively high.

In particular, in the process of icebreaking while moving forward or backward in the stern direction in the frozen section, if the hull side plate on the stern side where the engine is installed is damaged, freezing or damage to machinery and equipment in the area due to low-temperature outside air and seawater intrusion , or may affect the safety of the crew on board the vessel.

Ships operating in polar waters require a design plan that can protect machinery, equipment, and crew members in the stern part by applying a freeze or damage prevention structure to the stern part where the engine is equipped and promote safe operation.

The present invention has an ice-breaking function and prevents freezing or damage of machinery and equipment in the aft part equipped with an engine in the process of icebreaking or operating a polar cargo carrier transporting cargo in polar waters, and in a low-temperature environment in polar waters. It is an object of the present invention to provide a stern structure of a cargo carrier for polar regions having an icebreaking function capable of protecting crew members.

According to one aspect of the present invention, a stern structure of a cargo carrier for polar regions having an icebreaking function and operating in polar waters, comprising: an engine unit equipped with an engine; A space portion formed between the engine portion and the outer plate of the hull; a propulsion unit provided at the stern side of the engine unit and having one or more propellers installed thereon; And a cargo carrier for polar regions having an icebreaking function may be provided, including a first bulkhead portion for partitioning and separating the engine portion from the executive portion and the propulsion unit.

The engine unit may be partitioned from the space unit and the propeller unit by the first partition wall unit to form a watertight space.

In addition, the stern structure of a cargo carrier for polar regions having an icebreaking function further comprising a central watertight bulkhead partitioning the engine part into left and right sides of the hull.

In addition, the engine unit, a first engine room disposed on the starboard side of the hull based on the central watertight bulkhead; And it may include a second engine room disposed on the port side of the hull.

In addition, each of the first engine room and the second engine room is equipped with one or more engines, and may be independently operated.

In addition, the space portion, a first void provided on the starboard side of the hull; And it may include a second void provided on the port side of the hull.

In addition, the first partition wall portion may be installed between the first void and the engine unit and between the engine unit and the second void to have a double wall structure.

In addition, the bottom of the hull may be formed in a double bottom structure, and the engine unit may be disposed above the double bottom structure.

In addition, the space unit, a third void provided in the lower portion of the engine unit and disposed on the port side; and a fourth void provided under the engine unit and disposed on the starboard side.

In addition, a water ballast tank for adjusting the draft of a ship may be provided in at least one of the first void to the fourth void.

In addition, the propeller unit is formed to be spaced apart from the outer plate of the hull, and may include a plurality of pod rooms provided with various facilities for controlling the propeller.

In addition, in order to compartmentalize each of the plurality of pod rooms, a second partition wall portion installed to surround each of the plurality of pod rooms may be further included.

In addition, a watertight door may be formed between two pod rooms located adjacent to each other among the plurality of pod rooms so that a worker can move.

In the present invention, a space portion is formed between the engine portion and the outer plates of the left and right hulls, and a watertight bulkhead is installed between the space portion and the engine portion to form a watertight space inside the engine portion, and icebergs or drift ice can be formed. Even if the outer plate is damaged during ice breaking or navigation in the existing ice section, freezing or damage to machinery and equipment inside the hull can be prevented.

In addition, through the left and right space parts of the engine part, it is possible to secure a space for installing a thermal insulation material for keeping the engine part warm in a low-temperature environment of the polar sea area, and it is possible to have an effect of protecting crew members in the low-temperature environment of the polar sea area.

In addition, the engine part is partitioned left and right to form a first engine room and a second engine room, and a watertight bulkhead is additionally installed between the first engine room and the second engine room, so that any one of the first engine room and the second engine room In one place, the engine may be damaged due to low-temperature outside air or seawater intrusion, and the function may have the effect of enabling continuous navigation by operating the engine in the other place.

In other words, in the present invention, a part of the engine part forming the watertight space in the stern part during icebreaking or navigation, that is, any one of the first engine room and the second engine room is exposed to low-temperature outdoor air due to impact such as damage to the shell of the hull. Even if the function of the engine is lost due to exposure to water or intrusion of seawater, the engine provided in the other area where the operation is not stopped may operate independently.

Therefore, it is possible to have an effect of being able to sail to a repairable area after isolating only the corresponding area where the damage has occurred for a certain period of time.

Furthermore, even if some or all of the plurality of pod rooms equipped with each pod room for operating the propulsion system are flooded or damaged and lose propulsive power, the crew on board can guarantee survival for a certain period of time through the engine part separated from the propulsion base part. may have beneficial effects.

1 is a schematic plan view of a stern structure of a cargo carrier for polar regions having an icebreaking function according to an embodiment of the present invention.
2 is a view schematically showing a transverse section at the stern side of a cargo carrier for polar regions according to an embodiment of the present invention.
3 is a view schematically showing a longitudinal section on the stern side of a cargo carrier for polar regions according to an embodiment of the present invention.

In order to fully understand the present invention and its operational advantages and objectives achieved by the practice of the present invention, reference should be made to the accompanying drawings illustrating preferred embodiments of the present invention and the contents described in the accompanying drawings.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to components of each drawing, it should be noted that the same components have the same numerals as much as possible even if they are displayed on different drawings.

In addition, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description will be omitted. Preferred embodiments of the present invention will be described below, but the technical spirit of the present invention is not limited or limited thereto and can be modified and implemented in various ways by those skilled in the art, of course.

1 is a schematic plan view of the stern structure of a cargo carrier for polar regions according to an embodiment of the present invention, and FIG. 2 schematically shows a transverse section on the stern side of the cargo carrier for polar regions according to an embodiment of the present invention. FIG. 3 is a view schematically illustrating a longitudinal section on the stern side of a cargo carrier for polar regions according to an embodiment of the present invention.

Referring to FIG. 1, a stern structure 1 of a cargo carrier for polar regions according to an embodiment of the present invention includes an engine unit 10 equipped with an engine (not shown), the engine unit 10 and the outer plate of the hull. A void space 20 formed between the side shell (unsigned) and a propulsion base (unmarked) provided on the stern side of the engine part 10 and having one or more propulsors installed (shown in FIG. 1) Reference numerals PR1, PR2, and PR3), and a first partition wall portion 31 for partitioning and separating the engine portion 10 from the space portion 20 and the propeller portion.

In this embodiment, the engine unit 10 may be partitioned from the space unit 20 and the propeller unit by the first partition wall unit 31 to form a watertight space.

The stern structure 1 of the cargo carrier for polar regions according to an embodiment of the present invention may further include a center watertight bulkhead 30 partitioning the engine unit 10 in left and right directions.

That is, the engine unit 10 of the present embodiment, as shown in FIGS. 1 and 2, is partitioned in the left and right directions by the central watertight bulkhead 30, and the starboard side of the hull based on the central watertight bulkhead 30 ( It may include a first engine room 11 disposed in the STBD and a second engine room 12 disposed in the port of the hull.

In this embodiment, one or more engines may be provided in each of the first engine room 11 and the second engine room 12, and the first engine room 11 and the second engine room 12 may have respective engines. It can be provided independently operable through.

In the stern structure 1 of this embodiment, the engine part 10 is partitioned and separated from the space part 20 and the propeller part by the first bulkhead part 31 to form a watertight space, and the central watertight bulkhead 30 By partitioning the engine unit 10 into a first engine room 11 and a second engine room 12, in either the first engine room 11 or the second engine room 12, low-temperature outdoor air or Even if the engine is damaged and loses its function due to seawater intrusion, it is possible to continue sailing to the port (or port facility) by operating the remaining engine.

Here, it is natural that the bottom of the hull (ie, the bottom of the ship) is formed in a double bottom structure, and the engine unit 10 is disposed on top of the double bottom structure.

In the description of the present embodiment, the engine unit 10 has been described as including a first engine room 11 and a second engine room 12, but the present invention is not limited thereto, and the engine unit 10 It may consist of a plurality of engine rooms (three or more) in the transverse direction of the hull by installing two or more watertight bulkheads.

Here, a watertight door (not shown) is installed on the central watertight bulkhead 30 installed between the first engine room 11 and the second engine room 12 so that the operator can access the first engine room 11 ) and the second engine room 12 may be considered to enable convenient passage, but stairs or elevators (not shown) are installed near the upper deck (UD) (see FIG. 3) of the hull. It may be desirable to allow entry only to the lower part near the upper deck (UD).

The space part 20 is formed between the engine part 10 and the outer plate of the hull, and may serve to protect the inside of the hull from low-temperature outside air and external impact.

As shown in FIG. 1 , the space portion 20 of this embodiment may include a first void 21 provided on the starboard side of the hull and a second void 22 provided on the port side of the hull.

Here, the first bulkhead portion 31 is installed between the first engine room 11 and the first void 21 and between the second engine room 12 and the second void 22, respectively, to have a double wall structure. (Double hull structure).

In this embodiment, the engine unit 10 is provided inside the stern side of the hull of the ship, and various machinery and equipment related to the operation of the engine as well as the engine can be mounted inside the engine unit 10. The stern structure 1 forms a double wall structure through the space part 20 and the first bulkhead part 31 outside the engine part 10, so that the ice breaking or navigation process of the ice section where icebergs or drift ice exists Even if the outer plate is damaged in the engine unit 10, it is possible to prevent freezing or damage of machinery and equipment.

The first bulkhead portion 31 may be equally installed on the front and rear sides (in the bow direction and the stern direction) of each of the first engine room 11 and the second engine room 12, and the first engine room 11 And it may be preferable to be integrally formed with the central watertight bulkhead 30 to form a watertight space in each of the second engine room 12 .

In addition, as shown in FIG. 2, the space part 20 of this embodiment is provided in the lower part of the engine part 10 and the third void 23 disposed on the port side, and the lower part of the engine part 10 It is provided and may further include a fourth void 24 disposed on the starboard side.

In this embodiment, at least one of the first void 21 to the fourth void 24 may be provided with a water ballast tank for adjusting the draft of the ship by filling seawater or water, and the water ballast The tank may be provided by replacing the first void 21 to the fourth void 24 .

As described above, the aft structure 1 of a cargo carrier for polar regions according to an embodiment of the present invention includes a propulsion base (unsigned) provided on the stern side of the engine unit 10 and having one or more propulsion devices installed therein. can do.

Propulsion devices applied to ships operating in polar waters include, as described above in the prior art, azimus thrusters or pod-type propellers. Reversing or turning may be possible.

In this embodiment, the propulsion device may be applied with an electric podded azimuth thruster (not shown) to improve steering and icebreaking functions, etc., and the propulsion base of this embodiment has various facilities for controlling the propeller It may include a plurality of pod rooms (POD rooms) (PR1, PR2, PR3) provided.

In this embodiment, a pair of pod-type thrusters may be installed on the left and right sides of the bottom of the hull at the aft side, and three pod-type thrusters may be installed by installing one more between the pair of pod-type thrusters, Inside the hull, a pod room may be formed to correspond to the number of pod-type propellers.

The stern structure 1 of a cargo carrier for polar regions according to an embodiment of the present invention is provided to partition and separate each of a plurality of pod rooms (PR1, PR2, PR3) provided on the stern side of the engine unit 10. 2 partition walls 50 may be further included.

The second partition wall portion 50 of this embodiment may be installed to surround each of the plurality of pod rooms PR1, PR2, and PR3, and serves to partition each of the plurality of pod rooms PR1, PR2, and PR3. It can serve to protect each of the plurality of podrooms (PR1, PR2, PR3) from the intrusion of low-temperature outside air and seawater.

Cargo carriers for polar regions with an ice-breaking function are normally provided with a propulsion device rotated 360 degrees so that they can operate while breaking ice even when moving backward in the stern direction. There is a possibility that low-temperature outside air and seawater may enter due to damage to the outer shells on the PR2 and PR3) side, which may cause failure of various facilities for controlling the propeller.

In the stern structure 1 of the cargo carrier for polar regions according to an embodiment of the present invention, each of the plurality of pod rooms PR1, PR2, and PR3 is the same as or similar to the engine unit 10, spaced apart from the outer plate of the hull. A space is formed between the plurality of pod rooms (PR1, PR2, and PR3) and the outer plate of the hull, and the second bulkhead portion 50 is installed to surround each of the plurality of pod rooms (PR1, PR2, and PR3) It may be desirable to protect

Hereinafter, for convenience of explanation, the stern structure 1 of this embodiment will be described as an example in which three pod rooms (PR) are formed at the stern side of the engine unit 10, from the port side of the hull to the starboard direction. The first pod room PR1, the second pod room PR2, and the third pod room PR3 will be described.

The second bulkhead part 50 of this embodiment is between the first pod room PR1 and the second pod room PR2 formed on the stern side of the engine room 10 and between the second pod room PR2 and the third pod room PR2. Each may be formed between the pod rooms PR3.

That is, when the stern structure 1 of the present embodiment collides with an iceberg or drift ice in polar waters and any one of the first to third podrooms PR3 is out of order or damaged, and normal operation is impossible, the first to third podrooms PR3 are unable to operate normally. The propulsion of the ship can be generated only with the other one or the rest of the third podrooms PR3.

In this embodiment, the second partition 50 is integrally formed with the first partition 310 to form a watertight space in each of the plurality of pod rooms PR1 , PR2 , and PR3 . It may be natural to be integrally formed with the watertight bulkhead 30.

Here, a water-tight door 60 may be formed between two pod rooms located adjacent to each other among the plurality of pod rooms PR1 , PR2 , and PR3 to allow passage of workers.

In other words, by forming a watertight door 60 between at least one of the first pod room PR1 and the second pod room PR2 and between the second pod room PR2 and the third pod room PR3 , The operator can conveniently move between the plurality of pod rooms PR1 , PR2 , and PR3 through the water tight door 60 .

In FIGS. 1 and 4, unexplained reference numeral “BL” means a base line of a ship.

In the stern structure of a ship for polar regions according to an embodiment of the present invention, a space is formed between the engine and the outer plates of the left and right hulls, and a watertight bulkhead is installed between the space and the engine to form a watertight space inside the engine. Even if the outer plate is damaged during icebreaking or navigation in the ice section where icebergs or drift ice exist, it is possible to prevent freezing or damage of machinery and equipment inside the hull.

In addition, through the left and right space parts of the engine part, it is possible to secure a space for installing a thermal insulation material for keeping the engine part warm in a low-temperature environment of the polar sea area, and it is possible to have an effect of protecting crew members in the low-temperature environment of the polar sea area.

In addition, the engine part is partitioned left and right to form a first engine room and a second engine room, and a watertight bulkhead is additionally installed between the first engine room and the second engine room, so that any one of the first engine room and the second engine room In one place, the engine may be damaged due to low-temperature outside air or seawater intrusion, and the function may have the effect of enabling continuous navigation by operating the engine in the other place.

In other words, in the present invention, a part of the engine part forming the watertight space in the stern part during icebreaking or navigation, that is, any one of the first engine room and the second engine room is exposed to low-temperature outdoor air due to impact such as damage to the shell of the hull. Even if the function of the engine is lost due to exposure to water or intrusion of seawater, the engine provided in the other area where the operation is not stopped may operate independently.

Therefore, it is possible to have an effect of being able to sail to a repairable area after isolating only the corresponding area where the damage has occurred for a certain period of time.

Furthermore, even if some or all of the plurality of pod rooms equipped with each pod room for operating the propulsion system are flooded or damaged and lose propulsive power, the crew on board can guarantee survival for a certain period of time through the engine part separated from the propulsion base part. may have beneficial effects.

The above description is merely an example of the technical idea of the present invention, and those skilled in the art can make various modifications, changes, and substitutions without departing from the essential characteristics of the present invention. will be.

Therefore, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical idea of the present invention, but to explain, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings. .

In addition, the protection scope of the present invention should be construed according to the claims below, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

1: Polar cargo carrier
10: engine part
11: 1st engine room
12: 2nd engine room
20: Void space
21: first void
22: second void
23: third void
24: 4th void
30: Central watertight bulkhead
31: first partition wall
50: second partition wall
60: Watertight door
PR1, PR2, PR3: POD room
UD: Upper deck
BL: Base line

Claims (12)

As a stern structure of a cargo carrier for polar regions that has an icebreaking function and operates in polar waters,
An engine unit equipped with an engine;
A space portion formed between the engine portion and the outer plate of the hull;
a propulsion unit provided at the stern side of the engine unit and having one or more propellers installed thereon; and
A stern structure of a cargo carrier for polar regions including a first bulkhead part for partitioning and separating the engine part from the space part and the propeller part. According to claim 1,
The engine part,
A stern structure of a cargo carrier for polar regions having an icebreaking function that is partitioned from the space portion and the propulsion unit by the first bulkhead portion to form a watertight space. According to claim 1,
A stern structure of a cargo carrier for polar regions having an icebreaking function further comprising a central watertight bulkhead dividing the engine part into left and right sides of the hull. According to claim 3,
The engine part,
A first engine room disposed on the starboard side of the hull based on the central watertight bulkhead; and
Including a second engine room disposed on the port side of the hull,
The first engine room and the second engine room are provided with one or more engines, respectively, and a stern structure of a cargo carrier for polar regions having an icebreaking function provided to be operated independently. According to claim 1,
The space part,
A first void provided on the starboard side of the hull; and
Including a second void provided on the port side of the hull,
The first partition wall portion,
A stern structure of a polar cargo carrier having an icebreaking function having a double wall structure and installed between the first void and the engine part and between the engine part and the second void. According to claim 1,
The stern structure of a cargo carrier for polar regions having an icebreaking function in which the bottom of the hull is formed in a double bottom structure, and the engine part is disposed on top of the double bottom structure. According to claim 5,
The space part,
a third void provided under the engine part and disposed on the port side; and
A stern structure of a cargo carrier for polar regions having an icebreaking function further comprising a fourth void provided under the engine unit and disposed on the starboard side. According to claim 7,
A stern structure of a cargo carrier for polar regions having an icebreaking function in which a water ballast tank for adjusting the draft of the ship is provided in at least one of the first void to the fourth void. According to claim 1,
The propulsion base,
A stern structure of a cargo carrier for polar regions having an icebreaking function including a plurality of pod rooms formed spaced apart from the outer plate of the hull and provided with various facilities for controlling the propeller. According to claim 9,
A stern structure of a cargo carrier for polar regions having an icebreaking function further comprising a second bulkhead portion installed to surround each of the plurality of pod rooms in order to partition and separate each of the plurality of pod rooms. According to claim 10,
A stern structure of a cargo carrier for polar regions having an icebreaking function in which a water-dense door is formed between two pod rooms located adjacent to each other among the plurality of pod rooms so that workers can move. A cargo carrier for polar regions having the stern structure according to any one of claims 1 to 11.

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